#robotics Logs

Mar 18 2013

00:58 RifRaf cya
01:46 GuShH you see 6, chink says 5 http://www.ebay.com/itm/130702520481
06:17 jennie Hello
20:28 Lola8088
21:51 pototo What is a good resource for understanding and implementing PID control?
22:00 ace4016 text books mainly; or the random blogs/articles that explain the basics
22:15 Casper Hi there, does anyone knows of a good float charger for SLA that can handle a load all time and is 90%+ efficient in the 10+ amps? or a DC ups (120VAC in, regulated 12V out, not batt voltage out) at 80+% 10A?
22:21 rue_house Casper, why so efficient?
22:21 Casper it will be mostly running on AC, not just to charge a battery
22:22 Casper so the charger will basically be the psu
22:22 rue_house you know you dont float them at 12V right?
22:22 rue_house more like 13.5 - 14V
22:22 Casper I know, I want 13.5V 10A
22:22 Casper for the charger
22:23 rue_house you can buy smps that do that
22:23 Casper from them I'll put a buck-boost after that to get the 12.00V
22:23 Casper or
22:23 Casper if I can find a "black box" that do it for me, it's even better
22:23 rue_house or tweek the feedback voltage on a computer psu
22:23 Casper computer psu won't like the battery
22:23 rue_house depends what you do to it
22:23 rue_house }:)
22:24 Casper couln't find out a mod for the feedback to add current limiting
22:24 Casper if I would have... I'ld have a 40A charger :D
22:26 Casper all I found for that "black box" is that openups from mini-box.com but... I'm worried about the quality... and the specs
22:27 Casper they claim 10A, but when you read the specs it's 6A and when you look deeper it say to keep the hottest part bellow 65C, then even deeper it say that you might need active cooling....
22:37 Casper so rue_house... any suggestion?
22:37 Tom_itx camper psu
22:38 Tom_itx IOTA
22:38 Tom_itx http://tom-itx.dyndns.org:81/~webpage/misc_stuff/12v_supply3.jpg
22:39 Tom_itx http://tom-itx.dyndns.org:81/~webpage/misc_stuff/12v_supply2.jpg
22:39 Tom_itx removed for upgrade
22:39 Tom_itx free
22:42 Casper oh?
22:43 Casper interresting
22:44 Casper really free? just shipping?
22:45 sper wonders if you remove one of the 2 fuses if it fall back to 20A or will blow the other fus
22:49 Casper Tom_itx: you upgraded to what?